gpu: Generate mailboxes on client side

content/common/gpu/texture_image_transport_surface.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/gpu/texture_image_transport_surface.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 366 matching lines @@
 
   if (backbuffer_.get() && backbuffer_size() == current_size_)
     return;
 
   VLOG(1) << "Allocating new backbuffer texture";
 
   GLES2Decoder* decoder = helper_->stub()->decoder();
   TextureManager* texture_manager =
       decoder->GetContextGroup()->texture_manager();
   if (!backbuffer_.get()) {
-    mailbox_manager_->GenerateMailbox(&back_mailbox_);
+    back_mailbox_ = gpu::Mailbox::Generate();
     GLuint service_id;
     glGenTextures(1, &service_id);
     backbuffer_ = TextureRef::Create(texture_manager, 0, service_id);
     texture_manager->SetTarget(backbuffer_.get(), GL_TEXTURE_2D);
     Texture* texture = texture_manager->Produce(backbuffer_.get());
     mailbox_manager_->ProduceTexture(GL_TEXTURE_2D, back_mailbox_, texture);
   }
 
   {
     gfx::ScopedTextureBinder texture_binder(GL_TEXTURE_2D,
@@ skipping 53 matching lines @@
 
 #ifndef NDEBUG
   GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER);
   if (status != GL_FRAMEBUFFER_COMPLETE) {
     DLOG(FATAL) << "Framebuffer incomplete: " << status;
   }
 #endif
 }
 
 }  // namespace content